1
AIPMT 2005
MCQ (Single Correct Answer)
+4
-1
Which one of the following arrangements represents the correct order of electron gain enthalpy (with negative sign) of the given atomic species ?
A
S < O < Cl < F
B
Cl < F < S < O
C
F < Cl < O < S
D
O < S < F < Cl
2
AIPMT 2005
MCQ (Single Correct Answer)
+4
-1
Which of the following molecules has trigonal planar geometry?
A
BF3
B
NH3
C
PCl3
D
IF3
3
AIPMT 2005
MCQ (Single Correct Answer)
+4
-1
Which of the following pairs of a chemical reaction is certain to result in a spontaneous reaction ?
A
Exothermic and increasing disorder
B
Exothermic and decreasing disorder
C
Endothermic and increasing disorder
D
Endothermic and decreasing disorder
4
AIPMT 2005
MCQ (Single Correct Answer)
+4
-1
A reaction occurs spontaneously if
A
T$$\Delta $$S < $$\Delta $$H and both $$\Delta $$H and $$\Delta $$S are +ve
B
T$$\Delta $$S > $$\Delta $$H and $$\Delta $$H is +ve and $$\Delta $$S are $$-$$ve
C
T$$\Delta $$S > $$\Delta $$H and both $$\Delta $$H and $$\Delta $$S are +ve
D
T$$\Delta $$S = $$\Delta $$H and both $$\Delta $$H and $$\Delta $$S are +ve